Sash-fastener



(No Model.)

E.R.PERRY. SASH PASTENER.

Patented Feb. 16, 1886.

UNITED STATES PATENT OFFICE.

EDWIN R. FERRY, OF NE\V HAVEN, CONNECTICUT.

SASH-FASTENER.

SPECIFICATION forming part of Letters Patent No. 336,100, dated February 16, 1886. Application filed October10,1885. Serial No. 179,465. (No model.)

To all whom it may concern.-

Be it known that I, EDWIN R. FERRY, a citizen of the United States, residing at New Haven, in the county of New Haven and State of Connecticut, have invented certain new and useful Improvements in Sash-Fasteners; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference beinghad to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to an improvement in sash-fasteners, the object being the production of a fastener that will act automatically and firmly secure the window in its closed position.

Fasteners as usually constructed employ one or more springs, which are liable to break and render the fastener useless.

My improvement overcomes this difficulty; and it consists in the construction of its parts, as fully described hereinafter.

Figure 1 represents a view of the sash-fastener as applied to a window; Fig. 2, a sectional view ofthe case B and cam-shaped piece 0; Fig. 3,the set-screw detached; Fig. 4,aplan view of the case B.

A represents one part, which is made from any suitable metal, and is designed to be secured to the lower sash at its top. It is set in so as to come flush with the top and side of the sash, as seen in Fig. 1. On one side, a, one or more notches, b, are provided. The top part, c, is secured to the sash by screws or otherwise. The other part of the fastener is composed of a metal case, B, having ears d, perforated for the introduction of screws or their equivalent, for the purpose of fastening to the upper sash. Inside the case is a camshaped piece, C, hinged at 6, so that by its own weight the point f will project beyond the case, as shown. At the top of the case a longitudinal slot is made, through which a set-screw, H, is introduced into the camshaped piece 0 as a means of adjustment. XVhen the window is closed,the pointf of the cam-shaped piece 0 firmly bears upon the inclined point h of the part A, firmly securing the sash, which cannot be raised from the out side. Vhen it is desired to raise orlowerthe sash, the set screw H is pressed forward, thereby throwing the point f out of the path of the part A. The sash can then readily be raised. The window can be lowered without interfering with the set-screw H, as in the downward movement the cam-shaped piece G acts automatically by its own weight, as when in lowering the sash the points 9 strike the pointf the said pointf is thrown inward and falls by its own weight into the notches b, and prevents the lower sash from being raised. If it is desired to secure the cam shaped piece C in a position where it will not act as a means of locking the sash, it may be adjusted by the set-screw H, so that the point f will be entirely within the case, firmly held there out of the way of the part A. As a convenient means of accomplishing this, I cut away from each side the center of the under side of the head of the set-screw, leaving a slight projection, 11. \Vhen the cam-shaped piece C is in operation,the said part 2' of the set-screw falls into the slot in the case.

Vhen it is desired to lock the cam-shaped piece within the case, turn the set-screw until the part t comes crosswise of the slot, which will prevent the cam-shaped piece 0 or any part of it from projecting from the case, as the set-screw as adjusted firmly holds it in place. The sash can then be freely raised or lowered.

If at any time it becomes desirable to lower the upper sash a short distance for ventilation, the lower sash can still be locked, if de sired, as also the upper sash be prevented from being further lowered from the outside. If the upper sash, to accomplish this desire, be lowered so that the point f of the cam shaped piece C falls into either of the notches b, the sash is firmly locked in that positionthat is, the lower sash is prevented from being raised and the upper sash from being lowered without the aid of the set-screw H from a person inside.

The fastener, as described, is automatic in its action and firmly secures the sash. It is simple in its construction and cheap.

Having thus fully described my invention, what I desire to secure by Letters Patent is In teSPiElQBy whereof I affix my signature in presence of two witnesses.

EDWIN R. FERRY.

Witnesseg:

ELLIS A. GEER, HENRY STORER. 

